ISCN3 Rebuild

#knitr::opts_chunk$set(eval=TRUE)

Purpose: This vignette describes the ISCN3 data contributions.

library(SOCDRaH2)
library(tidyverse)
library(knitr)
library(ggplot2)
library(ggmap)
library(kableExtra)
dataDir <- '~/Desktop/Datasets/ISCN'

knitr::opts_chunk$set(eval=TRUE, echo=FALSE)

## Warning in mask$eval_all_mutate(quo): NAs introduced by coercion

Site counts for each contributing dataset submision (dataname_sub) in the profile and layer data table.

dataset_name	dataset_type (dataset_type)	dataset_description	profile_site_count	layer_site_count
Myers-Smith	new	This data set contains soil data for cores from a transect from the center of the BBC collapse scar (0 m) into the surrounding burn (30 m). Thirty-five cores were collected soil cores along the transect in March 2003.	NA	1
Oak Ridge National Lab_Loblolly_DWJ	new	early- and end-rotation soil C and N for ORNL loblolly plantation study	NA	1
Oak Ridge National Lab_TDE	new	Pre- and posttreatment soil C and N for the Throughfall Displacement Experiment at the Walker Branch Watershed	NA	1
UMBS_FASET	new	soil C and N and stable isotopes for a subset of plots within the footprints of the reference and treatment eddy-flux towers of the Forest Accelerated Succession Experiment (FASET) at UMBS.	1	1
Schuur	new	Three sites of undisturbed, new karst and old karst; 6 cores per site on the north slope of Alaska Range near Denali	1	3
Heckman lithosequence	new	A lithosequence of forest soils. Ponderosa pine the dominant overstory species.	4	4
USGS Muhs	new	Stratigraphic sequences from 6 sites around Fairbanks, AK where some profiles were sampled 10 meter or more depth. Note that Eva Creek is a broken sequence.	NA	6
Vogel	new	High elevation-no permafrost, mid elevation-deep permafrost, and low elevation-shallow permafrost black spruce plots	NA	8
Lu_PIMA	new	11 of 52 profiles from Ping research on Black Spruce sites; the remaining profiles were excluded because they overlapped with NRCS data	2	11
USGS Harden Yazoo	new	Upland soil C data from sites in the Yazoo basin, MS, collected as a component of the MS Basin Carbon Project	5	11
Kane	new	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok	NA	12
Heckman/Swanston Biscuit Burn	new	Updated soil %C and 14C data for severely burned and unburned soils, sampled after the Biscuit Complex fire.	NA	14
Lu_LTER	new	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed	13	19
Bonanza LTER	new	Bonanza Creek soils data from long-term plots 1989-1990, 24 sites, 4-5 pits per site	16	24
Lehmann Soil C&BC #1	new	Soil C & BC survey based on MIR from some LTER and other sites	NA	31
USGS Harden	new	Bonanza Creek, Erickson Creek, Hess Creek, Tanana Flats and Delta Junction Soils from 2000 to present	6	31
Boby_Mack	new	92 sites with 4 soil cores each; contains organic and some mineral data of recently burned sites	NA	38
Jorgensen_YKDE	new	Yukon Delta; no carbon or bulk density	NA	100
USDA-FS NRS Landscape Carbon Inventory	new	This dataset is the compilation of 7 sites designed to provide “Tier 3”, or landscape scale carbon monitoring of above and belowground carbon pools. Please see reference material.	NA	165
Lehmann NE US soils	new	Lehmann’s soil chemical characterization, incl. MIR spectra, for the NE region of a cross-US sampling effort.	NA	172
Permafrost_RCN	analysis	Group data contribution by the Vulnerability of Permafrost RCN.	NA	211
Bockheim	new	Profiles from drained thaw lake basins near Barrow, AK and along the Dalton Highway on the north slope of the Brooks Range	26	226
Jorgensen_ARCN	new	Northwest Alaska; no carbon or bulk density	NA	318
Northern Circumpolar Soil Carbon Database (NCSCD)	new	Luke Nave’s adaptation (to ISCN template) of the NCSCD; deep profile SOC data from North America and Eurasia	510	515
Jorgensen_NPS	new	Wrangell and Elias State Parks; no carbon or bulk density; all 1998 (“G00…” names) samples are from B. Lill study	NA	675
AK DSC Project SOC stock computation	analysis	Gap-filling and SOC computations for layers/horizons comprising the Alaska Deep Soil Carbon Project	1043	1043
USGS_S3C	new	This dataset is derived from the USGS ‘S3C’ (Site-specific soil C) database. The database is a pedon-based, site-specific SOC database for the MS River Basin Carbon Project. The database contains data from a variety of sources described in the Buell et al. (2004) USGS Open File Report. Note that all data in this dataset that originated from the USDA-NRCS NCSCD in 2001 have been omitted; these data are superseded by those acquired directly from the USDA-NRCS NCSCD in 2011.	944	1394
Worldwide soil carbon and nitrogen data	new	Global soil carbon and nitrogen data compiled by Paule Zinke et al. from many sources	4105	4473
NRCS Sept/2014	migration	Pedon-level soils data from the NRCS-Soil Survey Lab, National Cooperative Soil Characterization Database (version date: 11 September 2014). Sites are distributed across all 50 states, with some data also originating from U.S. Territories and foreign countries.	14723	58233

Data Contributions

TEMPLATE (data_name_sub identifier)

The TEMPLATE dataset is cited or uncited. This data set is located in the United States and has XXX layer-level observations and YYY profile-level observations of ZZZ unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

To use this section remove the code chunk eval arguments and set the current_dataset to the right identifier.

Fixed issues

Copy this from the data report

Future issues

Copy this from the data report

None we are aware of

NRCS_Sept2014(NRCS_Sept2014)

WorldwideSCND(WorldwideSCND)

USGS_S3C

AK_DSC

Jorgensen_NPS

NCSCD

Jorgensen_ARCN

Bockheim

PCN

Lehmann_NE_US_soils

USDA-FS_NRS_LandscapeCarbonInventory

Jorgensen_YKDE

Boby_Mack (Boby_Mack)

See @Boby2010 for additional details and if you are using ISCN3 please cite. This data set is located in the United States and has XXX layer level observations and YYY profile-level observations of ZZZ unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the Boby_Mack data set.

dataset_name	Boby_Mack
dataset_type (dataset_type)	new
curator_name	Michelle Mack
curator_organization	University of Florida
curator_email	mcmack@ufl.edu
citation	Boby, L.A., Schuur, E.A.G., Mack, M.C., Verbyla, D., Johnstone, J.F., 2010. Quantifying fire severity, carbon, and nitrogen emissions in Alaska’s boreal forest. Ecological Applications 20(6), 1633-1647.
modification_date (YYYY-MM-DD)	2010-09-16
dataset_description	92 sites with 4 soil cores each; contains organic and some mineral data of recently burned sites

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	482
dataset_name_sub	Boby_Mack	482
datum (datum)	WGS84	482
hzn	?	448
hzn	O	34
hzn_desgn	O	34
hzn_desgn	unknown	448
state (state_province)	Alaska	482

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 81 rows containing non-finite values (stat_bin).

## Warning: Removed 32 row(s) containing missing values (geom_path).

Fixed issues

Below is a list of know issues that were addressed between ISCN 3 and ISCN 3.3 + Repeated information on soil carbon stocks was removed from the layer and profile information of the data set. + There are no duplicate rows that needed to be removed, however, the soil carbon stock columns gap filled by ISCN were removed by ISCN3.5 cleaning. + The site note in the data set profile was expanded to a formal citation and added to the ISCN bib file. + Note that data recorded as “Unknown” or “?” was left as is and NOT shifted to an NA value. + In profile, the ISCN SOC to 1m computation rows were removed, getting rid of duplicate data

Future issues

None we are aware of

Lehmann_Soil_CBC_1

USGS_Harden

Bonanza_LTER (Bonanza LTER)

The Bonanza_LTER dataset references @Cleve1993 and @Yarie2013. This data set is located in the United States and has 583 layer level observations and 44 profile-level observations of ZZZ unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the Bonanza LTER data set.

dataset_name	Bonanza LTER	Bonanza LTER	Bonanza LTER
dataset_type (dataset_type)	new	new	new
curator_name	Lola Oliver	Lola Oliver	Lola Oliver
curator_organization	University of Alaska - Fairbanks	University of Alaska - Fairbanks	University of Alaska - Fairbanks
curator_email	fnlko@uaf.edu	fnlko@uaf.edu	fnlko@uaf.edu
citation	Yarie, John. 1998. Soil physical and chemical properties based on genetic horizon from 4 replicate pits placed around the replicate LTER control plots sampled in 1988 and 1989., Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:134, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=134.	Van Cleve, K., Dyrness, C.T., Marion, G.M., Erickson, R., 1993. Control of soil development on the Tanana River floodplain, interior Alaska. Canadian Journal of Forest Research 23, 941-955.	Van Cleve, K., Dyrness, C.T., Marion, G.M., Erickson, R., 1993. Control of soil development on the Tanana River floodplain, interior Alaska. Canadian Journal of Forest Research 23, 941-955.
modification_date (YYYY-MM-DD)	2009-12-05	2009-12-05	2009-12-04
dataset_description	Bonanza Creek soils data from long-term plots 1989-1990, 24 sites, 4-5 pits per site	Bonanza Creek soils data from long-term plots 1989-1990, 24 sites, 4-5 pits per site	Bonanza Creek soils data from long-term plots 1989-1990, 24 sites, 4-5 pits per site

Layer-level catagorical variable counts.

column_name	value	n
color	10 yr 4/1 matrix 10yr 4/4 motts	1
color	10yr 2/1	1
color	10yr 2/1 humified	1
color	10yr 2/2	5
color	10yr 2/2 for H, 10yr 3/2	1
color	10yr 2/2; 10yr 4/4 below	1
color	10yr 2/2; 10yr 5/5	1
color	10yr 3.5/2	1
color	10yr 3.5/3 charcoal flecks present	1
color	10yr 3/2	5
color	10yr 3/2 matrix v. indistinct orange mottles	1
color	10yr 3/2.5 matrix	1
color	10yr 3/3	9
color	10yr 3/3 scattered charcoal	1
color	10yr 3/4	11
color	10yr 3/4 7.5yr 3/4 lower boundry	1
color	10yr 3/4, 2.5y 5/4 banded layer (depositional?) 50-50 w/ bands of different color	1
color	10yr 4.5/1 matrix mottles 7.5yr 3/4 ab&distinct	1
color	10yr 4.5/1; 10yr 5/8 mottles	1
color	10yr 4.5/2	2
color	10yr 4.5/2 matrix	1
color	10yr 4.5/3	3
color	10yr 4.5/6	1
color	10yr 4/1	3
color	10yr 4/1 com. small dist. 4/4 mottles	1
color	10yr 4/1 matric, comm. small-med dist 10yr 4/4 mottles	1
color	10yr 4/1 matrix 10yr 3/4 comm dist mott around root chanels	1
color	10yr 4/1 matrix 10yr 3/4 scattered mott	1
color	10yr 4/1 matrix 10yr 3/4 v. scatt. mott.	1
color	10yr 4/1 matrix 10yr 4/4 comm, dist mottles	1
color	10yr 4/1 matrix, Bndries 10yr 4/4 mottles 10yr 4/1.4 matrix	1
color	10yr 4/1 matrix; v. com 10yr 3/4 mottles	1
color	10yr 4/1 scatt dist 10yr 4/4 mottles	1
color	10yr 4/1; 10yr 5/6 mottles	1
color	10yr 4/1; com, dist. 10yr 5/6 circ. mottles	1
color	10yr 4/1.5	1
color	10yr 4/1.5 matrix 10yr 3/4 scatt. inistinct mottles	1
color	10yr 4/2	13
color	10yr 4/2 10yr 5/6 mottles	1
color	10yr 4/2 lenses of organic matter mixed w/ mineral; 10yr 3/2 burried organic below	1
color	10yr 4/2 matrix	5
color	10yr 4/2 mixed with lenses of buried organic	1
color	10yr 4/2 scatt, indist. 10yr 4/4 mottles	1
color	10yr 4/3	9
color	10yr 4/3 small indistinct mottles 10yr 4/6, 2.5y 5/0	1
color	10yr 4/4	14
color	10yr 4/4 f.indist. mottles	2
color	10yr 4/4 thin 7.5yr 4/3 sice	1
color	10yr 4/4; 10yr 5/4 below	1
color	10yr 4/5	1
color	10yr 4/6	3
color	10yr 4/6 matrix common mottles 2.5y 5/2	1
color	10yr 5.5/4	1
color	10yr 5/0 mottles dist. scatt linear, circular; 10yr 5/2 matrix	1
color	10yr 5/1.5	1
color	10yr 5/2	2
color	10yr 5/2 common indist. mottles 10yr 4/6	1
color	10yr 5/2 frequent organic matter zones 10yr 3/0	1
color	10yr 5/2; 10yr 2/2 burried organic below	1
color	10yr 5/2.5	1
color	10yr 5/3	2
color	10yr 5/4	20
color	10yr 5/4 (looks lighter colored than horizon above)	1
color	10yr 5/4 11-11.5 sice 7.5yr 3/4	1
color	10yr 5/4 12-12.5 yr 3/4 sice	1
color	10yr 5/4 layer of sice? (illegible) 2.5 yr 3/4	1
color	10yr 5/4 sice 7.5yr 3/4	1
color	10yr 5/5	1
color	10yr 5/5 sice 7.5 yr3/4	1
color	10yr 5/6	1
color	10yr 5/6 elong scatt. mottles 10yr 4/2 matrix	1
color	10yr 5/6 mottles scatt. elongated 10yr 4.5/2 matrix	1
color	10yr 6/2	1
color	10yr 6/3	1
color	10yr 6/3 streaks of 10yr 4/3	1
color	10yr 6/4	1
color	2.5 y 4.5/2	1
color	2.5 y 4/2	1
color	2.5 y 4/2 & same colored orange mottles burried O.M. w/ thin mineral larger sandwiched	1
color	2.5 y 5.5/2 2.5y 4/4 faint scattered mottles 10yr 5/6	1
color	2.5y 3.5/2	1
color	2.5y 3.5/2, v. indist. mottles 10yr 4/4	1
color	2.5y 3/2	2
color	2.5y 3/2 diffuse mottles 10yr 4/6	1
color	2.5y 3/2 lenses buried organic matter	1
color	2.5y 3/2, 10yr 4/6 diffuse mottles	1
color	2.5y 3/4	1
color	2.5y 3/4 matrix fine indist. mottles 10yr 4/6	1
color	2.5y 3/4 matrix small indistinct mottles 10yr 4/6	1
color	2.5y 4.5/2	5
color	2.5y 4.5/2 (moist)	1
color	2.5y 4.5/2 matrix frequent large mottles 10yr 4/6	1
color	2.5y 4.5/4	5
color	2.5y 4/0 com. distinct. mot	2
color	2.5y 4/0 scattered mottles 10yr 4/6	1
color	2.5y 4/0 smeary decomposed birchcreek schist?; zones 2.5y 5/4 meds large pieces of quarty	1
color	2.5y 4/2	38
color	2.5y 4/2 (matrix) 2.5y 4/0 10yr 4/6 (mottles)	1
color	2.5y 4/2 (moist)	3
color	2.5y 4/2 abund. linear mottles 10yr 4/6	1
color	2.5y 4/2 Lenses of lo. f. sa.	1
color	2.5y 4/2 matrix 10yr 4/4 mottles	1
color	2.5y 4/2 matrix 10yr 4/4 small distinct mottles	1
color	2.5y 4/2 matrix 10yr 4/6 common mottles several thin layers of burried organic	1
color	2.5y 4/2 matrix 10yr 4/6 scattered mottles	1
color	2.5y 4/2 matrix abund. dist. 10yr 4/4 mottles burned organic matter	1
color	2.5y 4/2 matrix common fine indistinct mottles 10yr 4/4	1
color	2.5y 4/2 matrix scatt. diff 10yr 4/6 mottles	1
color	2.5y 4/2 matrix v. small distinct mottles 10yr 4/6	1
color	2.5y 4/2 matrix with 2.5y 4/0 10yr 4/6 mottles	1
color	2.5y 4/2 matrix, 10yr 4/6 mottles; 10yr 2/1 buried organic below	1
color	2.5y 4/2 same layer 2.5y 4/4	1
color	2.5y 4/2 very wet (moist)	1
color	2.5y 4/2, organic 10yr 2/2 mineral layer v. thin, between 2 buried forest floors	1
color	2.5y 4/2, v. scatterd 10yr 4/6 mottles	1
color	2.5y 4/2; 10yr 2/1 buried organic below	1
color	2.5y 4/2; 10yr 2/1 buried organic layer below	1
color	2.5y 4/2; 10yr 2/2 below	1
color	2.5y 4/2; 10yr 2/2 burried organic below	1
color	2.5y 4/3	1
color	2.5y 4/3 matrix, small indistinct mottles 10yr 4/6	1
color	2.5y 4/4	10
color	2.5y 4/4 37-39cm continuous layer (depositional?) 10yr 4/4	1
color	2.5y 4/6	1
color	2.5y 44/2	1
color	2.5y 5.5/2	4
color	2.5y 5.5/2 (moist)	2
color	2.5y 5.5/2 matrix Indist. Hor. streaks 2.5y 5/6	1
color	2.5y 5.5/2 matrix Indist. mottles	1
color	2.5y 5.5/4	1
color	2.5y 5.5/4 infrequent bands of 10yr 3/6	1
color	2.5y 5.5/4, 10yr 3/6 lenses of silty clay or sice	1
color	2.5y 5/2	22
color	2.5y 5/2 (moist)	3
color	2.5y 5/2 matrix 10yr 4/6 mottles	1
color	2.5y 5/2 with scattered, distinct mottles	1
color	2.5y 5/4	10
color	2.5y 6/0	2
color	2.5yr 4/2	3
color	2.5yr 4/4	1
color	5y 3/2	1
color	5y 4/1	1
color	5y 4/1.5 suirface 2" dry	1
color	7.5yr 3/2	2
color	7.5yr 3/4	4
color	7.5yr 3/4 F.mineral	1
color	7.5yr 4/3	1
color	7.5yr 4/4	5
color	7.5yr large sice	1
color	alt. 5cm layers: 10yr 3/4, 2.5y 4/4	1
color	com. ind. mot. 10yr 4/6 5y 4/1	1
color	largely leaf litter and rotten wood here	1
color	lenses of buried organic matter matrix 2.5y 4/2 mottles 2.5y 4/0 10yr 4/6 abund; 10yr 2/1 buried organic layer below	1
color	lenses of organic matter 2.5y 4/2, abund 10yr 4/6 mottles; buried organic matter 10yr 2/1 below	1
color	matrix 1/2+1/2 10yr 5/6, 10yr 5/2	1
color	matrix 10yr 6/2 streaks and mottles 10yr 4/6 (common)	1
color	matrix 2.5y 4/0 common and distinct 10yr 4/6	1
color	matrix 2.5y 4/0 common and distinct 10yr 4/6 mottles	1
color	matrix 2.5y 4/2 common and distinct 2.5y 4/0 and 10yr 4/0 mottles	1
color	matrix 2.5y 4/2 common descrete 2.5y 3/0 and 10yr 4/6	1
color	matrix 2.5y 4/2 common, indestinct 10yr 4/2 and 2.5y 4/10	1
color	matrix 2.5y 4/2, abund. indistinct 10yr 4/6 mottles	1
color	matrix 2.5y 4/2; abund 10yr 4/6 mottles; buried organic matter 10yr 2/1 below	1
color	matrix 2.5y 4/2; scattered indist. 10yr 4/6 mottles	1
color	matrix 2.5y 4/4 mottles small indist. 10yr 4/6	1
color	matrix 2.5y 4/4, small indist. mottles	1
color	mot. 2.5y 4/1 scat. mot. 10yr 4/6	1
color	mottles 10yr 4/4 com, dist Matrix 10yr 4.5/1	1
color	saturated 2.5y 4/0 scattered mottles 10yr 4/6	1
color	scattered 10yr 3/4 strk. 10yr 6/6 matrix	1
color	surface 2"dry 2.5y 5/2 (moist)	2
color	surface 3" are dry, 2.5y 5/2 (moist)	1
color	thin L layer and mostly F- No H here	1
color	thin lenses of buried org. 2.5y 4/2 matrix, 2.5y 5/0 10yr 4/6 mottles; 10yr 2/2 organic layer below	1
color	thin lenses of buried organic matter, 2.5y 4/2 matrix, small indistict mottles 10yr 4*6	1
color	top 3.5" are dry 2.5y 5/2 (moist)	1
color	v.scatt. 10yr 5/6 mottles 2.5y 4/2	1
color	very wet 2.5y 3.5/2 (Moist)	1
color	very wet 2.5y 4/2 (Moist)	1
color	w indest? (illegible) 2.5y 6/8 mottles 2.5y 3/2	1
color	W mottles 2.5y 6/0	1
color	zones of 10yr 3/6 sice in profile at 23cm	1
color	NA	203
country (country)	United States	583
dataset_name_sub	Bonanza LTER	583
datum (datum)	NAD83	583
root_quant_size	Ab. rts	3
root_quant_size	Abd. rts	2
root_quant_size	abundant fine roots	1
root_quant_size	abundant roots	7
root_quant_size	comm rts	3
root_quant_size	Comm Rts	4
root_quant_size	comm. roots	1
root_quant_size	comm. rts	3
root_quant_size	common	5
root_quant_size	common roots	3
root_quant_size	common rts	1
root_quant_size	Ext, Scatt rts	1
root_quant_size	no roots	2
root_quant_size	roost v. abundant	1
root_quant_size	roots ab.	1
root_quant_size	roots absent	1
root_quant_size	roots abund	7
root_quant_size	Roots abund! Roots really concentrated here!	1
root_quant_size	roots abund.	1
root_quant_size	roots abundant	32
root_quant_size	Roots abundant	2
root_quant_size	roots abundant to common	1
root_quant_size	roots abundant top common with depth	1
root_quant_size	roots abundant, abundant charcoal	1
root_quant_size	roots abundant, rooted wood present	1
root_quant_size	roots abundants	2
root_quant_size	roots around	1
root_quant_size	roots common	31
root_quant_size	roots common to scattered	1
root_quant_size	roots common, abundant muscovite flecks	1
root_quant_size	roots common>scattered	1
root_quant_size	Roots random	1
root_quant_size	roots rare	12
root_quant_size	roots rare (but present)	1
root_quant_size	roots scattered	39
root_quant_size	Roots scattered	1
root_quant_size	roots scattered >common	1
root_quant_size	roots scattered but few large roots	1
root_quant_size	roots scattered, abundant mica flecks	1
root_quant_size	roots scattered, frequent mica flecks	1
root_quant_size	roots scattered, larger,moister than previous horizon	1
root_quant_size	roots sparse	1
root_quant_size	roots v. abund.	2
root_quant_size	roots v. abundant	3
root_quant_size	roots v. common	1
root_quant_size	roots v. rare	1
root_quant_size	roots v. scattered	1
root_quant_size	roots v.abundant	3
root_quant_size	roots V.C.	1
root_quant_size	roots.v. abundant	1
root_quant_size	Rtd. v.Scattered	1
root_quant_size	Rts ab.	2
root_quant_size	Rts abun	1
root_quant_size	rts abund	6
root_quant_size	Rts abund	1
root_quant_size	Rts comm	2
root_quant_size	rts common	1
root_quant_size	Rts common	2
root_quant_size	Rts scatt	1
root_quant_size	Rts scattered	1
root_quant_size	rts v.common	2
root_quant_size	rts. Ab	1
root_quant_size	Rts. Ab	1
root_quant_size	rts. ab.	1
root_quant_size	rts. abund	8
root_quant_size	Rts. abund	3
root_quant_size	Rts. Abund	1
root_quant_size	rts. abund.	3
root_quant_size	Rts. abund.	2
root_quant_size	rts. abundant	8
root_quant_size	Rts. abundant	2
root_quant_size	Rts. com.	1
root_quant_size	rts. common	16
root_quant_size	Rts. common	6
root_quant_size	rts. rare	1
root_quant_size	Rts. rare	1
root_quant_size	Rts. Scat	1
root_quant_size	Rts. Scatt	1
root_quant_size	rts. scattered	14
root_quant_size	Rts. scattered	4
root_quant_size	Rts. Scattered	1
root_quant_size	rts. scattered>v.scattered	1
root_quant_size	Rts. v. abund	1
root_quant_size	rts. v. common	4
root_quant_size	Rts. v. rare	1
root_quant_size	rts. v. scattered	4
root_quant_size	Rts. v. scattered	1
root_quant_size	rts. v.abundant	1
root_quant_size	Rts. v.abundant	1
root_quant_size	rts. v.scattered	1
root_quant_size	rts., common	1
root_quant_size	rts.v. abundant	1
root_quant_size	rts.v. common	1
root_quant_size	Rts.v. common	2
root_quant_size	rts.v. scattered	1
root_quant_size	Rts.v.abundant	1
root_quant_size	rts.v.common	2
root_quant_size	rts.v.scattered	1
root_quant_size	Rts.v.svattered	1
root_quant_size	scatt	2
root_quant_size	Scatt. rts	1
root_quant_size	scatt. rts.	1
root_quant_size	scattered	2
root_quant_size	scattered burried o.m.	1
root_quant_size	scattered roots	1
root_quant_size	abundant roots	1
root_quant_size	common	1
root_quant_size	scatt rts	2
root_quant_size	V. Scatt Rts	1
root_quant_size	scatt. rts.	1
root_quant_size	V. Scattered	1
root_quant_size	v.abundant roots	2
root_quant_size	v.com rts	1
root_quant_size	VCR loose organic	1
root_quant_size	NA	246
state (state_province)	Alaska	583
vegclass_local	I.A.2.e	13
vegclass_local	I.B.2.b	29
vegclass_local	II.B.1.b	133
vegclass_local	II.B.2.b	35
vegclass_local	II.B.2.d	33
vegclass_local	II.B.2.f	124
vegclass_local	II.C.1.b	24
vegclass_local	II.C.2.g	21
vegclass_local	II.C.2.l	50
vegclass_local	III.A.2.d	11
vegclass_local	III.A.3.f	76
vegclass_local	NA	34

Profile-level catagorical variable counts.

column_name	value	n
2d_position (2d_position)	backslope	12
2d_position (2d_position)	summit	10
2d_position (2d_position)	NA	22
country (country)	United States	44
dataset_name_sub	Bonanza LTER	44
datum (datum)	NAD83	44
ecoregion	Interior Highlands	44
landform (landform)	flood plain	22
landform (landform)	hill	22
profile_zero_ref (profile_zero_ref)	topO	44
state (state_province)	Alaska	44
vegclass_local	I.B.2.b	4
vegclass_local	II.B.1.b	3
vegclass_local	II.B.2.d	5
vegclass_local	II.B.2.f	16
vegclass_local	II.C.1.b	2
vegclass_local	II.C.2.g	2
vegclass_local	III.A.2.d	1
vegclass_local	III.A.3.f	11

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 1181 rows containing non-finite values (stat_bin).

## Warning: Removed 194 row(s) containing missing values (geom_path).

Fixed issues

Below is a list of know issues that were addressed between ISCN 3 and ISCN 3.3

• In the dataset_profile, SOC computed values were removed and duplicate entries were removed.
• In the dataset_layer, SOC computed values were removed.

Future issues

• Data citation present, import directly from EDI for ISCN4

Lu_LTER(Lu_LTER)

The Lu_LTER data set references @Ping2000, @Ping2002, @Ping2004, @Ping2005, and @Michaelson1996. The Lu_LTER data set in ISCN3 contains 103 layer-level observations and 14 profile-level observations after cleaning for ISCN3.5.

Citations for the Lu_LTER data set.

dataset_name	Lu_LTER	Lu_LTER	Lu_LTER	Lu_LTER	Lu_LTER
dataset_type (dataset_type)	new	new	new	new	new
curator_name	Chien-Lu Ping	Chien-Lu Ping	Chien-Lu Ping	Chien-Lu Ping	Chien-Lu Ping
curator_organization	University of Alaska - Fairbanks	University of Alaska - Fairbanks	University of Alaska - Fairbanks	University of Alaska - Fairbanks	University of Alaska - Fairbanks
curator_email	pfclp@uaa.alaska.edu	pfclp@uaa.alaska.edu	pfclp@uaa.alaska.edu	pfclp@uaa.alaska.edu	pfclp@uaa.alaska.edu
citation	Ping, C.L., Michaelson, G.J., Packee, E.C., Stiles, C.A., Swanson, D.K., Yoshikawa, K., 2005. Soil catena sequences and fire ecology in the boreal forest of Alaska. Soil Science Society of America Journal 69(6), 1761.	Ping, Chien-Lu. 2000. Soil Horizon Descriptions/Classification and Lab Analysis, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:149, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=149.	Ping, C.L., Michaelson, G.J., Kimble, J.M., Everett, L.R., 2002. Organic carbon stores in Alaska soils. In: R. Lal, J.M. Kimble, R. Follet (Eds.), Agricultural Practices and Policies of Carbon Sequestration in Soils. Lewis Publishers, Boca Raton, LA, pp. 485–494.	Michaelson, G.J., Ping, C.L., Kimble, J.M., 1996. Carbon storage and distribution in tundra soils of arctic Alaska, U.S.A. Arctic and Alpine Research 28(4), 414-424.	Ping, C.L., Clark, M.H., Swanson, D.K., 2004. Cryosols in Alaska. In: J.M. Kimble (Ed.), Cryosols: Permafrost-affected soils. Springer-Verlag, Berlin, pp. 71–94.
modification_date (YYYY-MM-DD)	2009-12-05	2009-12-05	2009-12-05	2009-12-05	2009-12-05
dataset_description	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed	11 profiles from the Bonanza long-term sites and 8 profiles from the Caribou-Poker Creek watershed

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	103
dataset_name_sub	Lu_LTER	103
datum (datum)	WGS84	103
hzn	A	12
hzn	B	40
hzn	C	22
hzn	E	1
hzn	O	28
hzn_desgn	A	7
hzn_desgn	C	3
hzn_desgn	2BC	1
hzn_desgn	2Bk1	1
hzn_desgn	2Bk2	1
hzn_desgn	2Bw/Ab	1
hzn_desgn	2C	2
hzn_desgn	2C2	1
hzn_desgn	2CBk3	1
hzn_desgn	2Cf	1
hzn_desgn	A1	2
hzn_desgn	A2	2
hzn_desgn	AC	1
hzn_desgn	BC	5
hzn_desgn	BCb	1
hzn_desgn	Bg	1
hzn_desgn	Bg’	1
hzn_desgn	Bg’‘/Oe’’’	1
hzn_desgn	Bg/Oa	1
hzn_desgn	Bg/Oe	1
hzn_desgn	Bg1	1
hzn_desgn	Bg1/Oa	1
hzn_desgn	Bg2	2
hzn_desgn	Bgb	1
hzn_desgn	Bgb1/C2	1
hzn_desgn	Bgb2	1
hzn_desgn	Bgjj	1
hzn_desgn	Bw	4
hzn_desgn	Bw’	1
hzn_desgn	Bw/Bg1	1
hzn_desgn	Bw1	4
hzn_desgn	Bw2	5
hzn_desgn	Bw3	1
hzn_desgn	Bw3/C1	1
hzn_desgn	C1	3
hzn_desgn	C2	3
hzn_desgn	C3	3
hzn_desgn	C4	1
hzn_desgn	Cf	2
hzn_desgn	Cgf2	1
hzn_desgn	Cr	1
hzn_desgn	EB	1
hzn_desgn	Oa	1
hzn_desgn	Oa’	1
hzn_desgn	Oa/Bw1	1
hzn_desgn	Oab/Cgf1	1
hzn_desgn	Ob/C	1
hzn_desgn	Oe	2
hzn_desgn	Oe’	1
hzn_desgn	Oe’’	1
hzn_desgn	Oe’/Bg’	1
hzn_desgn	Oe/Bg	1
hzn_desgn	Oi	4
hzn_desgn	Oi/C	1
hzn_desgn	Oi/C1/Oi/Oe/Oa	1
hzn_desgn	Oi/Oa	1
hzn_desgn	Oi/Oe	8
hzn_desgn	Oi/OeOa	1
hzn_desgn	Oi1/Oi2	1
soil_series	Coarse-loamy, mixed Aquic Eutrocryepts	14
soil_series	Coarse-loamy, mixed Lamellic Eutrocryepts	6
soil_series	Coarse-loamy, mixed Typic Cryaquents	5
soil_series	Coarse-loamy, mixed Typic Cryofluvents	4
soil_series	Coarse-loamy, mixed Typic Dystrocryept	5
soil_series	Coarse-loamy, mixed Typic Dystrocryepts	5
soil_series	Coarse-loamy, mixed Typic Historthels	14
soil_series	Coarse-loamy, mixed Vitriandic Calcicryids (tentative)	7
soil_series	Coarse-loamy, mixed, nonacidic Fluvaquentic Cryaquepts	9
soil_series	Coarse-silty, mixed Lamellic Eutrocryepts	7
soil_series	Coarse-silty, mixed Ruptic Histoturbels	6
soil_series	Dysic Lithic Hemistels	5
soil_series	Dysic Terric Hemistels	5
soil_series	Loamy-skeletal, mixed Humic Dystrocryepts	6
soil_series	Loamy-skeletal, mixed Lithic Aquorthels	5
state (state_province)	Alaska	103
vegclass_local	I.A.1.j	7
vegclass_local	I.A.1.k	7
vegclass_local	I.A.2.f	9
vegclass_local	I.A.3.e	15
vegclass_local	I.B.1.c	12
vegclass_local	I.B.1.e	6
vegclass_local	I.C.1.a	11
vegclass_local	I.C.1.d	10
vegclass_local	I.C.2.d	4
vegclass_local	II.A.2.a	6
vegclass_local	II.B.1.d	5
vegclass_local	II.B.2.a	4
vegclass_local	NA	7

Profile-level catagorical variable counts.

column_name	value	n
2d_position (2d_position)	backslope	3
2d_position (2d_position)	footslope	1
2d_position (2d_position)	shoulder	2
2d_position (2d_position)	toeslope	1
2d_position (2d_position)	NA	7
country (country)	United States	14
dataset_name_sub	Lu_LTER	14
datum (datum)	WGS84	14
drainagecl (drainage)	moderately well	2
drainagecl (drainage)	poorly	1
drainagecl (drainage)	somewhat poorly	6
drainagecl (drainage)	well	5
ecoregion	Interior Highlands	14
landform (landform)	flood plain	7
landform (landform)	hill	7
profile_zero_ref (profile_zero_ref)	topO	14
soil_series	Coarse-loamy, mixed Aquic Eutrocryepts	2
soil_series	Coarse-loamy, mixed Lamellic Eutrocryepts	1
soil_series	Coarse-loamy, mixed Typic Cryaquents	1
soil_series	Coarse-loamy, mixed Typic Cryofluvents	1
soil_series	Coarse-loamy, mixed Typic Dystrocryept	1
soil_series	Coarse-loamy, mixed Typic Dystrocryepts	1
soil_series	Coarse-loamy, mixed Typic Historthels	3
soil_series	Coarse-loamy, mixed, nonacidic Fluvaquentic Cryaquepts	1
soil_series	Coarse-silty, mixed Ruptic Histoturbels	1
soil_series	Loamy-skeletal, mixed Humic Dystrocryepts	1
soil_series	Loamy-skeletal, mixed Lithic Aquorthels	1
state (state_province)	Alaska	14
vegclass_local	I.A.1.j	2
vegclass_local	I.A.2.f	2
vegclass_local	I.A.3.e	1
vegclass_local	I.B.1.c	1
vegclass_local	I.B.1.e	1
vegclass_local	I.C.1.a	2
vegclass_local	I.C.1.d	2
vegclass_local	II.A.2.a	1
vegclass_local	II.B.1.d	1
vegclass_local	II.B.2.a	1

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 90 rows containing non-finite values (stat_bin).

## Warning: Removed 8 row(s) containing missing values (geom_path).

Fixed issues

Below is a list of know issues that were addressed between ISCN 3 and ISCN 3.3

• In profile, the ISCN SOC to 1m computation rows were removed, as well as any resulting duplicate data.

Future issues

None we are aware of

HeckmanSwanstonBiscuitBurn

Kane (Kane)

Please see @Kane2004, @Kane2005, @Kane2009, and @Valentine2004 for additional details. This data set is located in the United States and has 574 layer level observations and 144 profile-level observations of ZZZ unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the Kane data set.

dataset_name	Kane	Kane	Kane	Kane	Kane
dataset_type (dataset_type)	new	new	new	new	new
curator_name	Evan Kane	Evan Kane	Evan Kane	Evan Kane	Evan Kane
curator_organization	Michigan Technological University	Michigan Technological University	Michigan Technological University	Michigan Technological University	Michigan Technological University
curator_email	citizenkane@gmail.com	citizenkane@gmail.com	citizenkane@gmail.com	citizenkane@gmail.com	citizenkane@gmail.com
citation	Kane, E.S., Valentine, D.W., Schuur, E.A.G., Dutta, K., 2005. Soil carbon stabilization along climate and stand productivity gradients in black spruce forests of interior Alaska. Canadian Journal of Forest Research 35(9), 2118-2129.	Valentine, David. 2004. Soil profiles along productivity gradients in interior Alaska: Summer 2003, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:133, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=133.	Kane, E.S., Vogel, J.G., 2009. Patterns of total ecosystem carbon ctorage with changes in soil temperature in boreal black spruce forests. Ecosystems 12(2), 322-335.	Kane, Evan. 2004. Soil carbon stabilization along productivity gradients in interior Alaska: Summer 2003, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:132, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=132.	Kane, Evan. 2004. Soil carbon stabilization along productivity gradients in interior Alaska: Summer 2003, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:132, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=132.
modification_date (YYYY-MM-DD)	2009-12-05	2009-12-05	2009-12-05	2009-12-05	2009-12-04
dataset_description	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok	12 sites, 12 pits per site, black spruce stands near Fairbanks and Tok

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	103
dataset_name_sub	Lu_LTER	103
datum (datum)	WGS84	103
hzn	A	12
hzn	B	40
hzn	C	22
hzn	E	1
hzn	O	28
hzn_desgn	A	7
hzn_desgn	C	3
hzn_desgn	2BC	1
hzn_desgn	2Bk1	1
hzn_desgn	2Bk2	1
hzn_desgn	2Bw/Ab	1
hzn_desgn	2C	2
hzn_desgn	2C2	1
hzn_desgn	2CBk3	1
hzn_desgn	2Cf	1
hzn_desgn	A1	2
hzn_desgn	A2	2
hzn_desgn	AC	1
hzn_desgn	BC	5
hzn_desgn	BCb	1
hzn_desgn	Bg	1
hzn_desgn	Bg’	1
hzn_desgn	Bg’‘/Oe’’’	1
hzn_desgn	Bg/Oa	1
hzn_desgn	Bg/Oe	1
hzn_desgn	Bg1	1
hzn_desgn	Bg1/Oa	1
hzn_desgn	Bg2	2
hzn_desgn	Bgb	1
hzn_desgn	Bgb1/C2	1
hzn_desgn	Bgb2	1
hzn_desgn	Bgjj	1
hzn_desgn	Bw	4
hzn_desgn	Bw’	1
hzn_desgn	Bw/Bg1	1
hzn_desgn	Bw1	4
hzn_desgn	Bw2	5
hzn_desgn	Bw3	1
hzn_desgn	Bw3/C1	1
hzn_desgn	C1	3
hzn_desgn	C2	3
hzn_desgn	C3	3
hzn_desgn	C4	1
hzn_desgn	Cf	2
hzn_desgn	Cgf2	1
hzn_desgn	Cr	1
hzn_desgn	EB	1
hzn_desgn	Oa	1
hzn_desgn	Oa’	1
hzn_desgn	Oa/Bw1	1
hzn_desgn	Oab/Cgf1	1
hzn_desgn	Ob/C	1
hzn_desgn	Oe	2
hzn_desgn	Oe’	1
hzn_desgn	Oe’’	1
hzn_desgn	Oe’/Bg’	1
hzn_desgn	Oe/Bg	1
hzn_desgn	Oi	4
hzn_desgn	Oi/C	1
hzn_desgn	Oi/C1/Oi/Oe/Oa	1
hzn_desgn	Oi/Oa	1
hzn_desgn	Oi/Oe	8
hzn_desgn	Oi/OeOa	1
hzn_desgn	Oi1/Oi2	1
soil_series	Coarse-loamy, mixed Aquic Eutrocryepts	14
soil_series	Coarse-loamy, mixed Lamellic Eutrocryepts	6
soil_series	Coarse-loamy, mixed Typic Cryaquents	5
soil_series	Coarse-loamy, mixed Typic Cryofluvents	4
soil_series	Coarse-loamy, mixed Typic Dystrocryept	5
soil_series	Coarse-loamy, mixed Typic Dystrocryepts	5
soil_series	Coarse-loamy, mixed Typic Historthels	14
soil_series	Coarse-loamy, mixed Vitriandic Calcicryids (tentative)	7
soil_series	Coarse-loamy, mixed, nonacidic Fluvaquentic Cryaquepts	9
soil_series	Coarse-silty, mixed Lamellic Eutrocryepts	7
soil_series	Coarse-silty, mixed Ruptic Histoturbels	6
soil_series	Dysic Lithic Hemistels	5
soil_series	Dysic Terric Hemistels	5
soil_series	Loamy-skeletal, mixed Humic Dystrocryepts	6
soil_series	Loamy-skeletal, mixed Lithic Aquorthels	5
state (state_province)	Alaska	103
vegclass_local	I.A.1.j	7
vegclass_local	I.A.1.k	7
vegclass_local	I.A.2.f	9
vegclass_local	I.A.3.e	15
vegclass_local	I.B.1.c	12
vegclass_local	I.B.1.e	6
vegclass_local	I.C.1.a	11
vegclass_local	I.C.1.d	10
vegclass_local	I.C.2.d	4
vegclass_local	II.A.2.a	6
vegclass_local	II.B.1.d	5
vegclass_local	II.B.2.a	4
vegclass_local	NA	7

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 90 rows containing non-finite values (stat_bin).

## Warning: Removed 8 row(s) containing missing values (geom_path).

Fixed issues

Below is a list of know issues that were addressed between ISCN 3 and ISCN 3.3 + Rows weren’t removed from ISCN3 because there were no duplicated entries within the layer-level and profile-level information. + Columns were removed from ISCN3 where information was not available throughout the data set. + Unclear information on vegetation remains in the vegclass_local section of the layer-level and profile-level information. + This data set required the use of a map centered around Alaska. + In profile, the ISCN SOC to 1m computation rows were removed, getting rid of duplicate data

Future issues

• Inquire about cryptic vegetation information located in the vegclass_local columns
• Include the two data citations The two urls provided lead to 404 error pages. citation [2]: https://search.dataone.org/view/https%3A%2F%2Fpasta.lternet.edu%2Fpackage%2Fmetadata%2Feml%2Fknb-lter-bnz%2F133%2F19 or https://search.dataone.org/view/https%3A%2F%2Fpasta.lternet.edu%2Fpackage%2Fmetadata%2Feml%2Fknb-lter-bnz%2F133%2F18 Looks like same datasets with two different DOI’s - contact repository to see if they want this handled a certain way citation [4]: https://search.dataone.org/view/https%3A%2F%2Fpasta.lternet.edu%2Fpackage%2Fmetadata%2Feml%2Fknb-lter-bnz%2F132%2F18 Download URL: https://pasta.lternet.edu/package/data/eml/knb-lter-bnz/132/18/e9bb75742dedc686e224c41ea6e33ad8 - the twelve pits data AND https://pasta.lternet.edu/package/data/eml/knb-lter-bnz/132/18/fc7153b558a9fa8d1f02ff61f8231fde - biophysical data and GPS coordinates

Lu_PIMA (Lu_PIMA)

The Lu_PIMA data set references @Ping2010. This dataset contains 69 layer-level information and 0 profile-level observations of 11 unique latitude-longitude locations in the layer-level table.

Citations for the Lu_PIMA data set.

dataset_name	Lu_PIMA
dataset_type (dataset_type)	new
curator_name	Chien-Lu Ping
curator_organization	University of Alaska - Fairbanks
curator_email	pfclp@uaa.alaska.edu
citation	Ping, C.L., Michaelson, G.J., Kane, E.S., Packee, E.C., Stiles, C.A., Swanson, D.K., Zaman, N.D., 2010. Carbon stores and biogeochemical properties of soils under black spruce forest, Alaska. Soil Science Society of America Journal 74(3), 969.
modification_date (YYYY-MM-DD)	2009-12-05
dataset_description	11 of 52 profiles from Ping research on Black Spruce sites; the remaining profiles were excluded because they overlapped with NRCS data

Layer-level catagorical variable counts.

column_name	value	n
color	10YR2/1	2
color	10YR2/1;2/2;5/1	1
color	10YR2/2	3
color	10YR3/3	2
color	10YR4/1;3/1 10YR5/8;2/1CP	1
color	10YR4/1;4/6	2
color	10YR4/2	1
color	10YR4/2,7.5YR3/1	1
color	10YR4/2;4/6	1
color	10YR4/2;4/6; 4/N	1
color	10YR4/3	3
color	10YR4/3, 2.5Y 4/3, 7.5YR3/2	1
color	10YR4/3, αα+	1
color	10YR4/3;4/2	1
color	10YR4/3;5/2	1
color	10YR4/4	3
color	10YR4/4; 2.5YR3/4; Gley1 3/5GY	1
color	10YR4/6,4/4	1
color	10YR4/6;5/6	1
color	10YR5/6; 55%; 2.5Y4/2;5/2	1
color	2.5Y4/1;10YR5/6	1
color	2.5Y4/3	3
color	2.5Y5/2	2
color	2.5YR2.5/1	6
color	2.5YR3/1	1
color	2.5YR3/2	1
color	5Y3/2	1
color	5Y3/3,4/2; 10YR3/3	1
color	5Y4/1	1
color	5YR2.5/1, 5YR4/4	1
color	5YR2.5/2	1
color	7.5YR 2.5/3	1
color	7.5YR2.5/1	4
color	7.5YR2.5/3	1
color	7.5YR3/1; 30%2.5YR2.5/2	1
color	7.5YR3/2	1
color	7.5YR3/3	1
color	7.5YR3/4	1
color	7.5YR3/4; 5/8	1
color	7.5YR4/3; 5YR4/6; Gley 1 4/10Y; 2.5YR3/6	1
color	7.5YR4/4	1
color	7.5YR4/6	1
color	7.5YR5/6	1
color	7.5YR5/6; 35% 2.5YR3/6; 5/2 motl; 10YR3/2;	1
color	NA	5
country (country)	United States	69
dataset_name_sub	Lu_PIMA	69
datum (datum)	WGS84	69
hzn	A	8
hzn	B	23
hzn	C	14
hzn	E	2
hzn	O	22
hzn_desgn	A	2
hzn_desgn	C	2
hzn_desgn	E	1
hzn_desgn	2Bgf	1
hzn_desgn	2C	2
hzn_desgn	2Cf1	1
hzn_desgn	2Cf2	1
hzn_desgn	2Cr	1
hzn_desgn	A/E	1
hzn_desgn	A1	1
hzn_desgn	A2	1
hzn_desgn	Ab	2
hzn_desgn	Afjj	1
hzn_desgn	BC	6
hzn_desgn	Bg	2
hzn_desgn	Bg/Ajj	1
hzn_desgn	Bg1	1
hzn_desgn	Bg2	1
hzn_desgn	Bs	2
hzn_desgn	Bw	3
hzn_desgn	Bw1	2
hzn_desgn	Bw2	2
hzn_desgn	Bwb1	1
hzn_desgn	Bwb2	1
hzn_desgn	C1	2
hzn_desgn	C2	1
hzn_desgn	C3	1
hzn_desgn	Cf	2
hzn_desgn	Cr	1
hzn_desgn	E/A	1
hzn_desgn	O/A	1
hzn_desgn	Oa	5
hzn_desgn	Oab	1
hzn_desgn	Oe	5
hzn_desgn	Oe /AE	1
hzn_desgn	Oe/Oa	1
hzn_desgn	Oi	7
hzn_desgn	Oi/Oe	1
root_quant_size	1F	2
root_quant_size	1VF	1
root_quant_size	1VF,F	6
root_quant_size	1VF,F,M	1
root_quant_size	2f,M	1
root_quant_size	2f,m, 1C	1
root_quant_size	2VF,F	4
root_quant_size	2Vf,F–	1
root_quant_size	2VF,F, 1M	2
root_quant_size	2VF,F,1M	1
root_quant_size	2VF,F,M	1
root_quant_size	2VF,F; 3VF,FCP	1
root_quant_size	3CP	1
root_quant_size	3VF	1
root_quant_size	3VF,2F; CP	1
root_quant_size	3VF,F	4
root_quant_size	3VF,F, 1C	1
root_quant_size	3VF,F, 1M	1
root_quant_size	3VF,F,1M	3
root_quant_size	3VF,F,1M,C	2
root_quant_size	3VF,F,2M	4
root_quant_size	3VF,F,2M,1C	3
root_quant_size	3VF,F,M	1
root_quant_size	3VF,F,M, 1C	3
root_quant_size	3VF,F,M,1C	2
root_quant_size	NA	20
state (state_province)	Alaska	69
vegclass_local	I.A.1.f	38
vegclass_local	I.A.1.g	7
vegclass_local	I.A.1.k	6
vegclass_local	I.A.1.l	18

Profile-level catagorical variable counts.

column_name	value	n
2d_position (2d_position)	shoulder	1
2d_position (2d_position)	NA	1
country (country)	United States	2
dataset_name_sub	Lu_PIMA	2
datum (datum)	WGS84	2
drainagecl (drainage)	poorly	1
drainagecl (drainage)	well	1
ecoregion	Copper Plateau	1
ecoregion	Interior Bottomlands	1
landform (landform)	hill	1
landform (landform)	plain	1
profile_zero_ref (profile_zero_ref)	topO	2
state (state_province)	Alaska	2
vegclass_local	I.A.1.f	1
vegclass_local	I.A.1.l	1

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 200 rows containing non-finite values (stat_bin).

## Warning: Removed 56 row(s) containing missing values (geom_path).

Fixed issues

• In profile, the ISCN SOC to 1m computation rows were removed, getting rid of duplicate data.
• The layer tables were adjusted to reassign the value “NA” to a column with “?”.
• The clean layer and clean profile table were checked for accuracy of information.
• A citation was added to the bibliography file.
• Four columns were removed from the original dataset that remove the soc columns from both the dataset_layer table and dataset_profile table.

Future issues

• Cite a database referenced in the dataset_study table
• The url links provided lead to a 404 error page. The correct url for dataone: https://search.dataone.org/view/knb-lter-bnz.366.16
• The datasite download link provided: http://www.lter.uaf.edu/404.php This link leads to a 404 error, contacting the researchers is necessary.

USGS Harden Yazoo (USGS Harden Yazoo)

The USGS Harden Yazoo dataset references @Harden1999 and @Huntington1998. This data set is located in the United States and has 234 layer level observations and 17 profile-level observations of 4 unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the USGS Harden Yazoo data set.

dataset_name	USGS Harden Yazoo
dataset_type (dataset_type)	new
curator_name	Jennifer Harden
curator_organization	USGS
curator_email	jharden@usgs.gov
reference	Huntington T, Harden J, Dabney S, Marion D, Alonso C, Sharpe J, Fries T. 1998. SOIL, ENVIRONMENTAL, AND WATERSHED MEASUREMENTS IN SUPPORT OF CARBON CYCLING STUDIES IN NORTHWESTERN MISSISSIPPI. USGS Open file report 98-501
citation	Harden J, Fries T, Huntington T. 1999. MS Basin Carbon Project: Upland soil database for sites in Yazoo Basin, northern MS. USGS Open file report 99-319.
citation_usage	use Harden as primary citation, consult Huntington for additional info if needed.
modification_date (YYYY-MM-DD)	2011-05-06
contact_name	Luke Nave
contact_email	lukenave@umich.edu
dataset_description	Upland soil C data from sites in the Yazoo basin, MS, collected as a component of the MS Basin Carbon Project

Layer-level catagorical variable counts.

column_name	value	n
color	10 to 7.5YR5/6	2
color	10-7.5YR4.4. 2.5Y4/2	2
color	10-7.5YR5/4	1
color	10-7.5YR5/6	5
color	10-7.5YR5/6 2.5Y7/2	1
color	10YR 5/2d	1
color	10YR 5/4	2
color	10YR3/2	2
color	10YR3/2D	2
color	10YR3/3	2
color	10YR4/3	4
color	10YR4/3D	1
color	10YR4/4	3
color	10YR5/2;7.5YR4/6D	3
color	10YR5/2D	1
color	10YR5/3	3
color	10YR5/3.5	3
color	10YR5/3D	1
color	10YR5/3d;3/3m	1
color	10YR5/4	14
color	10YR5/4D	1
color	10YR5/6	5
color	10YR5/6 7.5YR4/6	2
color	10YR5/8 7.5YR5/8 2.5Y7/2	4
color	10YR6/2d	2
color	10YR6/4	1
color	10YR6/4d	1
color	10YR6/6d;5/6m	1
color	2.5Y6/2 10YR5/4	2
color	7.5YR 4/4 2.5Y7.2	2
color	7.5YR4/4	2
color	7.5YR4/4 2.7Y7.2	1
color	7.5YR4/6 2.7Y7.2	2
color	7.5YR5/3D	1
color	7.5YR5/4D	2
color	7.5YR5/6	5
color	7.5YR5/6 10YR7/3	1
color	7.5YR5/6 AND 4/4;10YR6/3	1
color	7.5YR5/6;4/4	1
color	7.5YR5/6D	1
color	7/5YR5/6 10YR7/2	1
color	LITTER	1
color	MD	6
color	NA	134
country (country)	Unknown	234
dataset_name_sub	USGS Harden Yazoo	234
datum (datum)	NAD27	220
datum (datum)	WGS84	14
hzn_desgn	A	17
hzn_desgn	AB	3
hzn_desgn	Ap	12
hzn_desgn	Ap1	1
hzn_desgn	Ap2	1
hzn_desgn	B	41
hzn_desgn	B1	2
hzn_desgn	Bir	1
hzn_desgn	Bjx	2
hzn_desgn	Bx	14
hzn_desgn	Oe	3
hzn_desgn	Oi	5
hzn_desgn	NA	132
root_quant_size	common fine	2
root_quant_size	common very fine	5
root_quant_size	common very fine common fine	2
root_quant_size	common very fine; common fine	4
root_quant_size	few fine	4
root_quant_size	few to common very fine	1
root_quant_size	few very fine	17
root_quant_size	few very fine common fine	1
root_quant_size	few very fine few fine	2
root_quant_size	few very fine; few fine	2
root_quant_size	many fine	2
root_quant_size	many fine; few very fine	1
root_quant_size	many very fine	4
root_quant_size	many very fine and fine	1
root_quant_size	many very fine;fine	1
root_quant_size	none	19
root_quant_size	NA	166
soil_series	Grenada	79
soil_series	NA	155
soil_taxon	FINE-SILTY, MIXED, ACTIVE, THERMIC OXYAQUIC FRAGLOSSUDALF	79
soil_taxon	Fragiudalf	132
soil_taxon	NA	23
state (state_province)	Mississippi	234

Profile-level catagorical variable counts.

column_name	value	n
country (country)	United States	17
dataset_name_sub	USGS Harden Yazoo	17
datum (datum)	NAD27	15
datum (datum)	WGS84	2
landform (landform)	alluvial flat	2
landform (landform)	terrace	3
landform (landform)	NA	12
landscape (landscape)	hills	17
profile_zero_ref (profile_zero_ref)	topO	17
soil_series	Grenada	5
soil_series	NA	12
soil_taxon	FINE-SILTY, MIXED, ACTIVE, THERMIC OXYAQUIC FRAGLOSSUDALF	5
soil_taxon	Fragiudalf	10
soil_taxon	NA	2
state (state_province)	Mississippi	17
surface_veg	lawn with oak and cedar	1
surface_veg	lawn with oak and cypress	1
surface_veg	oak forest	5
surface_veg	soybeans	10

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 704 rows containing non-finite values (stat_bin).

Fixed issues

• Half of the rows (234) of dataset_layer were removed from ISCN3 because they were repetitive entries from ISCN stock computation.
• 3 columns of dataset_layer were removed from ISCN3 because they were determined using soc.
• 17 rows of dataset_profile were removed from ISCN3 because they were filled using ISCN stock computation.
• 5 columns of dataset_profile were removed from ISCN 3 because they were determined using soc.
• Values in column country (country) were reassigned to “united States” in the dataset_layer and dataset_profile tables because it was the known location of the collection state.
• Values in the “hzn” column of the dataset_layer table were reassigned to an NA character from “?”, a nonspecific character.
• Ggplot maps were modified to ensure datasets accurately focused on Southeastern United States.
• Cryptic site notes in dataset_profile table were resolved to contain full citations.

Future issues

• Fix remaining SOC column in Dataset_layer table?

Vogel (Vogel)

The Vogel dataset references @Kane2009, @Vogel2007, and @Vogel2008. This data set is located in the United States and has 230 layer level observations and YYY profile-level observations of ZZZ unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the Vogel data set.

dataset_name	Vogel	Vogel	Vogel	Vogel
dataset_type (dataset_type)	new	new	new	new
curator_name	Jason Vogel	Jason Vogel	Jason Vogel	Jason Vogel
curator_organization	Texas A&M University	Texas A&M University	Texas A&M University	Texas A&M University
curator_email	jvogel@ufl.edu	jvogel@ufl.edu	jvogel@ufl.edu	jvogel@ufl.edu
citation	Vogel, J.G., Bond-Lamberty, B.P., Schuur, E.A.G., Gower, S.T., Mack, M.C., O’Connell, K.E.B., Valentine, D.W., Ruess, R.W., 2008. Carbon allocation in boreal black spruce forests across regions varying in soil temperature and precipitation. Global Change Biology 14(7), 1503-1516.	Kane, E.S., Vogel, J.G., 2009. Patterns of total ecosystem carbon ctorage with changes in soil temperature in boreal black spruce forests. Ecosystems 12(2), 322-335.	Vogel, Jason. 2007. Black spruce C cycling study along a temperature gradient in interior Alaska, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:304, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=304.	Vogel, Jason. 2007. Black spruce C cycling study along a temperature gradient in interior Alaska, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:304, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=304.
modification_date (YYYY-MM-DD)	2009-12-05	2009-12-05	2009-12-05	2009-12-04
dataset_description	High elevation-no permafrost, mid elevation-deep permafrost, and low elevation-shallow permafrost black spruce plots	High elevation-no permafrost, mid elevation-deep permafrost, and low elevation-shallow permafrost black spruce plots	High elevation-no permafrost, mid elevation-deep permafrost, and low elevation-shallow permafrost black spruce plots	High elevation-no permafrost, mid elevation-deep permafrost, and low elevation-shallow permafrost black spruce plots

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	230
dataset_name_sub	Vogel	230
datum (datum)	NAD83	230
hzn	?	71
hzn	A	53
hzn	O	106
hzn_desgn	A	53
hzn_desgn	Oe	55
hzn_desgn	Oi	51
hzn_desgn	unknown	71
state (state_province)	Alaska	230
vegclass_local	I.A.1.k	230

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

Fixed issues

Below is a list of know issues that were addressed between ISCN 3 and ISCN 3.3

• ISCN3 removed repeated information in citations, which was corrected and filled for ISCN3.5.
• ISCN3 also filled in the soil carbon stocks where bulk density and organic carbon was provided, this was removed for ISCN3.5.
• This data set was set in Alaska, so the Alaska Location code from the Template was used instead of the generic.

Future issues

• Find out where temperature and precipitation data is (currently not on ISCN)

USGS Muhs (USGS Muhs)

The USGS Muhs dataset references @Muhs2003. This data set is located in the United States and has 395 layer level observations and YYY profile-level observations of 4 unique latitude-longitude locations in the layer-level table and AAA in the profile-level table.

Citations for the USGS Muhs data set.

dataset_name	USGS Muhs	USGS Muhs
dataset_type (dataset_type)	new	new
curator_name	Daniel R. Muhs	Daniel R. Muhs
curator_organization	USGS	USGS
curator_email	dmuhs@usgs.gov	dmuhs@usgs.gov
modification_date (YYYY-MM-DD)	2012-09-26	2012-09-25
dataset_description	Stratigraphic sequences from 6 sites around Fairbanks, AK where some profiles were sampled 10 meter or more depth. Note that Eva Creek is a broken sequence.	Stratigraphic sequences from 6 sites around Fairbanks, AK where some profiles were sampled 10 meter or more depth. Note that Eva Creek is a broken sequence.

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	395
dataset_name_sub	USGS Muhs	395
datum (datum)	NAD83	395
hzn	?	34
hzn	A	48
hzn	B	40
hzn	c	1
hzn	C	249
hzn	e	8
hzn	E	7
hzn	O	8
hzn_desgn	A	1
hzn_desgn	C	28
hzn_desgn	E	5
hzn_desgn	O	3
hzn_desgn	10Ab	3
hzn_desgn	10Bw	1
hzn_desgn	10Bwb	1
hzn_desgn	10C	2
hzn_desgn	11Ab	3
hzn_desgn	11Bw	1
hzn_desgn	11Bwb	1
hzn_desgn	11Cb	1
hzn_desgn	12Ab	1
hzn_desgn	12Cb	9
hzn_desgn	12Cb/residuum	1
hzn_desgn	12Cloess/schist)	1
hzn_desgn	12Cloess/schits	1
hzn_desgn	2/3Ab	1
hzn_desgn	2/3ACb	2
hzn_desgn	201	1
hzn_desgn	2Ab	2
hzn_desgn	2AB	1
hzn_desgn	2ACb	1
hzn_desgn	2C	3
hzn_desgn	2cb	1
hzn_desgn	2Cn	1
hzn_desgn	2Cox	1
hzn_desgn	2E/Bwb	1
hzn_desgn	2Ob	1
hzn_desgn	2OEb	1
hzn_desgn	301/E	1
hzn_desgn	3Ab	4
hzn_desgn	3Bw	3
hzn_desgn	3Bwb	1
hzn_desgn	3C	1
hzn_desgn	3Cox	1
hzn_desgn	401	1
hzn_desgn	4Ab	2
hzn_desgn	4Bw	1
hzn_desgn	4Bwb	2
hzn_desgn	4C	22
hzn_desgn	501	1
hzn_desgn	5Ab	2
hzn_desgn	5ABwb1	1
hzn_desgn	5ABwb2	1
hzn_desgn	5Bw	1
hzn_desgn	5Bwb	3
hzn_desgn	5Bwb/Cb	3
hzn_desgn	5C	55
hzn_desgn	5CBb	2
hzn_desgn	5Cn	6
hzn_desgn	5Cox	1
hzn_desgn	5E	1
hzn_desgn	6Ab	3
hzn_desgn	6ABwb	1
hzn_desgn	6Bwb	3
hzn_desgn	6C	4
hzn_desgn	6C1	1
hzn_desgn	6C10/7A2b	1
hzn_desgn	6C2	3
hzn_desgn	6C3	2
hzn_desgn	6C4	1
hzn_desgn	6C5	4
hzn_desgn	6C6	1
hzn_desgn	6C7	1
hzn_desgn	6C8	1
hzn_desgn	6C9/7A1b	1
hzn_desgn	6CBwb	1
hzn_desgn	7A1b	1
hzn_desgn	7A2b	1
hzn_desgn	7A3b	1
hzn_desgn	7A4b	1
hzn_desgn	7Ab	2
hzn_desgn	7Ab/mixing	1
hzn_desgn	7BW1	1
hzn_desgn	7Bw1b	1
hzn_desgn	7BW2	1
hzn_desgn	7Bw2b	1
hzn_desgn	7BW3	1
hzn_desgn	7Bw3b	1
hzn_desgn	7C	3
hzn_desgn	7C1	2
hzn_desgn	7C10	1
hzn_desgn	7C11	1
hzn_desgn	7C12	2
hzn_desgn	7C13	1
hzn_desgn	7C14	1
hzn_desgn	7C15	2
hzn_desgn	7C16	1
hzn_desgn	7C17	2
hzn_desgn	7C18	1
hzn_desgn	7C19	1
hzn_desgn	7C2	2
hzn_desgn	7C20	1
hzn_desgn	7C21	1
hzn_desgn	7C22	1
hzn_desgn	7C3	2
hzn_desgn	7C4	2
hzn_desgn	7C5	2
hzn_desgn	7C6	2
hzn_desgn	7C7	3
hzn_desgn	7C8	2
hzn_desgn	7C9	1
hzn_desgn	8Ab	3
hzn_desgn	8Ab/mixing	1
hzn_desgn	8Ba1	1
hzn_desgn	8Bw2	1
hzn_desgn	8Bw3	1
hzn_desgn	8C	20
hzn_desgn	8C1	2
hzn_desgn	8C10	1
hzn_desgn	8C11	1
hzn_desgn	8C12	2
hzn_desgn	8C2	1
hzn_desgn	8C3	1
hzn_desgn	8C4	2
hzn_desgn	8C5	1
hzn_desgn	8C6	1
hzn_desgn	8C7	1
hzn_desgn	8C8	1
hzn_desgn	8C9	1
hzn_desgn	9Ab	2
hzn_desgn	9ACb	1
hzn_desgn	9Bw1b	1
hzn_desgn	9Bw2b	1
hzn_desgn	9C	1
hzn_desgn	9Cb	4
hzn_desgn	A1	1
hzn_desgn	Ab	5
hzn_desgn	AB	2
hzn_desgn	Bw	1
hzn_desgn	Bw1	3
hzn_desgn	Bw2	3
hzn_desgn	Bwb	1
hzn_desgn	C3	5
hzn_desgn	C4	1
hzn_desgn	Cb	8
hzn_desgn	CB	1
hzn_desgn	eroded A horiz	7
hzn_desgn	eroded A horizon	1
hzn_desgn	grey loess	17
hzn_desgn	mixing zone	1
hzn_desgn	O1	1
hzn_desgn	O2	1
hzn_desgn	Ob	1
hzn_desgn	soil A horiz?	2
hzn_desgn	soil Bs pod	4
hzn_desgn	soil O horizon	3
state (state_province)	Alaska	395

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 1664 rows containing non-finite values (stat_bin).

## Warning: Removed 2878 row(s) containing missing values (geom_path).

Fixed issues

• Repeated information on soil carbon stocks was removed from the layer and profile information of the data set.
• There are no duplicate rows that needed to be removed, however, the soil carbon stock columns gap filled by ISCN were removed by ISCN3.5 cleaning.
• In addition, the site note in the data set profile was expanded to a formal citation and added to the ISCN bib file.

Future issues

None we are aware of

HeckmanLithosequence

Schuur (Schuur)

The Schuur data set references @Schuur2007. This data set is located in the United States and has 153 layer-level observations and 4 profile-level observations of 1 unique latitude-longitude location in the layer-level table and AAA in the profile-level table.

Citations for the Schuur data set.

dataset_name	Schuur	Schuur	Schuur
dataset_type (dataset_type)	new	new	new
curator_name	Edward Schuur	Edward Schuur	Edward Schuur
curator_organization	University of Florida	University of Florida	University of Florida
curator_email	tschuur@ufl.edu	tschuur@ufl.edu	tschuur@ufl.edu
citation	Schuur, E.A.G., Crummer, K.G., Vogel, J.G., Mack, M.C., 2007. Plant species composition and productivity following permafrost thaw and thermokarst in Alaskan tundra. Ecosystems 10(2), 280-292.	Schuur, Edward. 2009. The impact of permafrost thaw on ecosystem carbon balance: Eight Mile Lake soil carbon and nitrogen., Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:366, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=366.	Schuur, Edward. 2009. The impact of permafrost thaw on ecosystem carbon balance: Eight Mile Lake soil carbon and nitrogen., Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:366, http://www.lter.uaf.edu/data_detail.cfm?datafile_pkey=366.
modification_date (YYYY-MM-DD)	2009-12-05	2009-12-05	2009-12-04
dataset_description	Three sites of undisturbed, new karst and old karst; 6 cores per site on the north slope of Alaska Range near Denali	Three sites of undisturbed, new karst and old karst; 6 cores per site on the north slope of Alaska Range near Denali	Three sites of undisturbed, new karst and old karst; 6 cores per site on the north slope of Alaska Range near Denali

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	153
dataset_name_sub	Schuur	153
datum (datum)	NAD83	153
hzn	?	153
hzn_desgn	unknown	153
state (state_province)	Alaska	153
vegclass_local	II.C.2.a	96
vegclass_local	II.D.2.b	57

Profile-level catagorical variable counts.

column_name	value	n
country (country)	United States	4
dataset_name_sub	Schuur	4
datum (datum)	NAD83	4
drainagecl (drainage)	well	4
ecoregion	Interior Highlands	4
landform (landform)	alluvial fan	4
profile_zero_ref (profile_zero_ref)	topO	4
state (state_province)	Alaska	4
surface_veg	dominance by shrubs, including blueberry (Vaccinium uliginosum) and cloudberry (Rubus chamaemorus), at the expense of sedges	4
vegclass_local	II.D.2.b	4

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

Fixed issues

In profile, the ISCN SOC to 1m computation rows were removed, getting rid of duplicate data.

Future issues

None that we are aware of

Myers_Smith

OakRidgeNationalLab_Loblolly_DWJ

OakRidgeNationalLab_TDE

University of Michigan Biological Station Forest Accelerated Succession ExperimenT (UMBS_FASET)

The University of Michigan Biological Station Forest Accelerated Succession Experiment (UMBS_FASET) data set is uncited and unpublished.

This data set is located in the United States and has 405 layer-level observations and 137 profile-level observations of 1 unique latitude-longitude location.

Citations for the UMBS_FASET data set.

dataset_name	UMBS_FASET
dataset_type (dataset_type)	new
curator_name	Luke Nave
curator_organization	University of Michigan Biological Station
curator_email	lukenave@umich.edu
acknowledgement	KJ Nadelhoffer and LE Nave. Unpublished soil C and N data from the Forest Accelerated Succession Experiment (FASET).
acknowledgement_usage	Data are unpublished. Please use acknowledgement in lieu of citation and consult curators before interpreting these data.
modification_date (YYYY-MM-DD)	2011-09-14
contact_name	Jim Le Moine
contact_email	jlemoin@umich.edu
dataset_description	soil C and N and stable isotopes for a subset of plots within the footprints of the reference and treatment eddy-flux towers of the Forest Accelerated Succession Experiment (FASET) at UMBS.

Layer-level catagorical variable counts.

column_name	value	n
country (country)	United States	405
dataset_name_sub	UMBS_FASET	405
datum (datum)	WGS84	383
datum (datum)	NA	22
hzn_desgn	B	29
hzn_desgn	NA	376
soil_series	Cheboygan	53
soil_series	Rubicon	255
soil_series	NA	97
soil_taxon	coarse-loamy, mixed, active, frigid alfic haplorthods	53
soil_taxon	sandy, mixed, frigid Entic Haplorthods	255
soil_taxon	NA	97
state (state_province)	Michigan	383
state (state_province)	NA	22

Profile-level catagorical variable counts.

column_name	value	n
country (country)	United States	137
dataset_name_sub	UMBS_FASET	137
datum (datum)	WGS84	137
drainagecl (drainage)	excessively	137
ecoregion	North Central Hardwood Forests	137
landform (landform)	outwash plain	137
landscape (landscape)	outwash plain	137
profile_zero_ref (profile_zero_ref)	topO	137
runoff (runoff)	negligible	137
site_perm (site_perm)	very rapid	137
soil_series	Cheboygan	24
soil_series	Rubicon	113
soil_taxon	coarse-loamy, mixed, active, frigid alfic haplorthods	24
soil_taxon	sandy, mixed, frigid Entic Haplorthods	113
state (state_province)	Michigan	137
surface_veg	forest (canopy=Populus,Quercus,Acer), (understory=Acer,Pinus,Amelanchier), ground layer (Pteridium, Vaccinium)	131
surface_veg	NA	6

## `stat_bin()` using `bins = 30`. Pick better value with `binwidth`.

## Warning: Removed 1237 rows containing non-finite values (stat_bin).

## Warning: Removed 652 row(s) containing missing values (geom_path).

Fixed issues

Below is a list of known issues that were addressed between ISCN 3 and ISCN 3.3 for the University of Michigan Biological Station Forest Accelerated Succession Experiment (UMBS_FASET) data set.

• The UMBS FASET data set is located in the United States and has 405 layer-level observations and 137 profile-level observations of 1 unique latitude-longitude location.
• ISCN SOC computation soil organic carbon calculations were removed and duplicate rows deleted.
• Values in the hzn column of the layer table were reassigned to an NA character from “?”, a nonspecific character.
• Values in country (country) column were reassigned to “United States” in the layer and profile tables because it was the known location of the collection state.

Future issues

• Citation practices were initially incompatible with CC-BY license for ISCN3; contacting data providers about modifying release for ISCN4
• Data is unpublished, and references “100 yrs of research.” Revisit in ISCN 4. Check and see if data is still being collected at this research site